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Verified Reviews for Energy Efficiency Auditing pros in Boulder, MT

*The Angi rating for Energy Efficiency Auditing companies in Boulder, MT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

*The HomeAdvisor rating for Energy Efficiency Auditing companies in Boulder, MT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

Last update on October 26, 2025

Find Energy efficiency auditors in Boulder

Avatar for RSS Solar

RSS Solar

Aurora Ave.
No reviews yet

RSS Solar

Aurora Ave.
No reviews yet
Free onsite estimate

We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.

We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.

Avatar for USA Alarm Service, Inc

USA Alarm Service, Inc

510 S Clearwater Loop
No reviews yet

USA Alarm Service, Inc

510 S Clearwater Loop
No reviews yet
29 years of experience

USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.

USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.

Solar Wolf Energy

2.00(
2
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Solar Wolf Energy

2.00(
2
)
10 years of experience

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Avatar for SBS Solar, LLC

SBS Solar, LLC

620 Fish Hatchery Rd
5.00(
4
)

SBS Solar, LLC

620 Fish Hatchery Rd
5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

SBS Solar is a solar electric systems integrator serving Western Montana, with over 30 years of experience. The team at SBS is dedicated to providing clean renewable solar energy to homes and commercial sites throughout Montana. We live with the products that we sell. Whether you are in the market for a grid-tie system, battery backup or a complete off grid application, SBS has the design and installation experience to help. SBS Solar has two NABCEP Certified Installers on staff, is a NorthWestern Energy Qualified Installer and is a SolarWorld Authorized Installer. SBS Solar prides itself on providing timely and professional customer service and we work hard to satisfy the needs and expectations of our clients in order to help move us forward toward a more environmentally, economically and socially sustainable society.

SBS Solar is a solar electric systems integrator serving Western Montana, with over 30 years of experience. The team at SBS is dedicated to providing clean renewable solar energy to homes and commercial sites throughout Montana. We live with the products that we sell. Whether you are in the market for a grid-tie system, battery backup or a complete off grid application, SBS has the design and installation experience to help. SBS Solar has two NABCEP Certified Installers on staff, is a NorthWestern Energy Qualified Installer and is a SolarWorld Authorized Installer. SBS Solar prides itself on providing timely and professional customer service and we work hard to satisfy the needs and expectations of our clients in order to help move us forward toward a more environmentally, economically and socially sustainable society.

Avatar for Energy Choice Center

Energy Choice Center

1301 Seminole Boulevard Suite 155
No reviews yet

Energy Choice Center

1301 Seminole Boulevard Suite 155
No reviews yet
16 years of experience

We provide free energy consulting services that pertain to discounted natural gas and electricity supply services through local utility companies.

We provide free energy consulting services that pertain to discounted natural gas and electricity supply services through local utility companies.

Energy Efficiency Auditing questions, answered by experts

Blower door tests are measured in a few different ways, but the most popular are air changes per hour (ACH) and cubic feet of air (CFM) moving through the house per hour. A good ACH score is less than 2ACH, but 1ACH is better. This means the house experiences a total air change within 60 minutes (for 1ACH). For 2ACH, there’s a complete change every 30 minutes, and so on. CFM scores are similar in that a lower score means less air change, and therefore less leakage.

When combined with a substantial solar system, if you have enough Powerwalls, you could go off-grid and be energy independent. But remember, you'd need enough Powerwalls to power your whole home continuously because a single Powerwall can’t power large appliances for extended periods. One Powerwall is able to power an average-sized home's emergency circuits, lights, and outlets. To power large appliances, you likely need two or three Powerwalls.

Depending on the level of audit you choose, a home energy audit will at least include a walk-through of the home to determine visible inefficiencies, but may include testing and a highly detailed inspection and report laying out the home’s inefficiencies and providing recommendations to fix those issues. The audit may also include a review of utility bills and mechanical testing. Consult your home energy auditor about the types of services they provide before hiring.

DIY is possible with basic tools. Professional audits provide comprehensive assessments and tailored recommendations.

The number one culprit of high energy bills is older appliances, especially fridges and freezers that are left on all the time. These two appliances tend to last a long time, which is good, but it also means that newer models are usually significantly more energy-efficient due to upgraded technology. The second most common reason for a high bill is heating and air conditioning.

The Boulder, MT homeowners’ guide to energy efficiency auditing services

From average costs to expert advice, get all the answers you need to get your job done.

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